GE CC-SCSTAT User Manual Download

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SmartCommand Thermostat

Installation Manual

Summary of Contents for CC-SCSTAT

Page 1: ...g SmartCommand Thermostat Installation Manual ...

Page 2: ...as designed for refer to the data sheet and user documentation For the latest product information contact your local supplier or visit us online at www gesecurity com FCC compliance This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interferen...

Page 3: ...and cool schedule screen 10 Copy schedule screen 11 User settings screen 12 Set clock screen 13 Sensor calibration screen 14 Backlight display screen 15 Thermostat information screen 16 Installer settings screen 17 Installation overview 20 Freeze protection 21 Wall display unit installation 22 Mounting 22 Wiring 22 Control unit installation 23 Control unit to WDU wiring 23 Control unit to HVAC wir...

Page 4: ...ion Manual iv Serial communication test 32 HVAC system testing 33 Control unit wiring 35 Serial network command and variable list 37 Network commands 37 Network variables 38 Contacting technical support 39 Online publication library 39 ...

Page 5: ...cation library on page 39 for instructions on accessing our online publication library Note A qualified service person complying with all applicable codes should perform all required hardware installation Conventions used in this document The following conventions are used in this document Safety terms and symbols These terms may appear in this manual Bold Menu items and buttons Italic Emphasis of...

Page 6: ...the control unit sends and receives data and commands via a twisted pair serial communication connection for remote control of the system The control unit can be used with up to three remote temperature sensors Wall display unit WDU The WDU has a backlit LCD graphical display capable of both text and graphics control buttons LEDs and a digital temperature sensor The unit can display multiple scree...

Page 7: ...en presents a simple uncluttered display of the current room temperature You can disable the Minimized screen if desired Note You can press any button when the Minimized screen is displayed to restore and display the Thermostat control screen Menu selection screen Press the Menu button on the Thermostat control screen to access the Main menu screen on page 7 This screen presents a list of the othe...

Page 8: ...oint display The heating and cooling setpoints are displayed next to the Up and Down buttons In heat mode the Up and Down buttons change the heat setpoint In cool mode they change the cooling setpoint When in auto mode the buttons change the last call s heating or cooling setpoint The setpoints will push each other if they are adjusted to within the minimum heat cool separation delta T setting Thi...

Page 9: ...ode button controls the HVAC system mode The current mode selected is displayed above the button Pressing the Mode button will cause the mode and display to change to the next mode The mode cycles through the following modes with each press of the Mode button Off mode The system is off No heating or cooling will come on If it was on the system will turn off Heat mode Only heating operation will oc...

Page 10: ... is active LED 2 green system Economy mode display LED off or on Econ displayed Economy or first stage heating or cooling only LED on 2nd Stg displayed Stage two heating or cooling is active LED on 3rd Stg displayed Stage three heating is active LED on Vent displayed Fresh air venting is active LED 3 green Run Hold display shows state of schedule Run Hold mode LED off Run displayed Schedule is run...

Page 11: ...een is selected The Messages menu item may or may not be displayed It can be enabled or disabled from the installer settings Schedules Access the Schedule setup screen on page 9 to set the programmable setback schedules of the thermostat User settings Access the User settings screen on page 12 to set the clock screen timeout F C mode sensor calibration and backlight display settings Thermostat inf...

Page 12: ... If you view some but not all new messages the new message notification LED and icon will stay on When you first select the Messages screen the most recently received message will be displayed as Message 1 If other messages are stored in memory you can recall and view or delete them by using the Messages screen navigation buttons Figure 4 Messages screen Screen navigation buttons include Done Retu...

Page 13: ...up screen Figure 5 gives you the option of setting a custom setback schedule or the option to load one of two preset schedules Figure 5 Schedule setup screen Screen options include Heat and cool Change the individual day hour and setpoints for the heating and cooling schedule see Heat and cool schedule screen on page 10 Preset Comfort Load the comfort schedule into the thermostat This is a preset ...

Page 14: ...the bottom right of the screen When you highlight C the button below will change from Next to Copy Press this button to access the Copy schedule screen on page 11 Figure 6 Heat and cool schedule screen Screen navigation buttons include Done Return to the Main menu screen on page 7 Left Scroll back Right Scroll forward Next Copy When the button shows Next select the next day s schedule When the but...

Page 15: ...chedule screen on page 10 2 Scroll through the days in the Copy schedule screen and select the days the schedule is to be copied to by setting the N under each day to Y using the Up Yes and Down No buttons 3 After selecting all the days desired press Copy 4 Press Back to exit the Copy schedule screen Figure 7 Copy schedule screen Screen navigation buttons include Back Return to the Heat and cool s...

Page 16: ...ons You can disable the Minimized screen feature by setting this time to 0 If this is disabled all screens revert to the main Thermostat control screen on page 4 after 120 seconds F C select Select which temperature display mode you desire Fahrenheit F or Centigrade C with the and buttons Sensor calibration Access the Sensor calibration screen on page 14 Backlight Display Access the Backlight disp...

Page 17: ...ait for the screen to timeout Note If the clock has been reset by an extended power outage the clock display on the Thermostat control screen will be blinking Pressing Menu button will take you directly to this screen to set the clock Figure 9 Set clock screen Screen navigation buttons include Back Cancel and return to the User settings screen on page 12 Left Move the selection box backward Right ...

Page 18: ...d To change the temperature calibration press Up or Down to select the internal or remote sensor Once selected press Plus or Minus to change the temperature calibration to the desired setting Press Refresh right blank button to update the information on this screen Note When you change a temperature calibration and exit this screen it may take a few seconds for the new temperature to be displayed ...

Page 19: ...0 Off level Set the brightness of the backlight when off You can adjust this setting in 10 steps 0 to 100 If you do not want the backlight to go completely dark when off you can set an off brightness to something greater than 0 When you select an on or off brightness the display changes to that level for you to observe the brightness setting Contrast Set the contrast level of the LCD display You c...

Page 20: ...tem type setting Standard or Heat Pump HP HVAC system Fan type setting for standard systems No fan with heat gas systems or fan with heat electric systems Changeover setting for heat pump systems Changeover with cool or changeover with heat Note You will see a Fan type setting for standard systems or a Changeover setting for HP systems Network address setting RS485 network address 1 to 254 default...

Page 21: ...rs The Installer settings screen displays the current internal settings of the thermostat You can view and change the settings from this screen Scroll to the desired function and press Plus or Minus to change the value Figure 13 Installer settings screen Screen navigation buttons include Done Return to the Main menu screen on page 7 Plus Increase value by 1 or change from N to Y Minus Decrease val...

Page 22: ...mp or accept setpoints higher than this maximum Minimum cooling setpoint 6 to 110 default 6 Set the minimum cooling setpoint that is allowed Will not ramp or accept setpoints lower than this minimum Minimum run time 1 to 9 minutes default 6 Set the minimum run time before a heating cooling cycle can turn off Minimum off time 5 to 9 minutes default 6 Set the minimum off time before another heating ...

Page 23: ...tarts Stage 2 turns off at setpoint WDU settings submenu Messaging enable Y or N default N Enable Y or disable N the network messaging function If you intend to use the messaging capability of the thermostat you must enable it here by setting it to Y Messages will then appear as a menu item in the main Menu screen and you will be able to receive and browse through the messages CAUTION Do not chang...

Page 24: ...control unit Be sure to install a freeze protection device as required Figure 14 shows the standard thermostat wiring versus retrofit applications Figure 14 Wiring overview 75 X Heating and cooling system Heating and cooling system Old system New system SmartCommand WDU SmartCommand control unit Replace existing thermostat with SmartCommand WDU Insert control unit into existing wiring 4 5 or 6 wir...

Page 25: ...n the heating system This can be a simple mechanical heating thermostat or a preset thermoswitch installed in the heated area Figure 15 Figure 15 Freeze protection WARNING Do not use this thermostat for freeze protection Mechanical thermostat or thermoswitch Heating system 24 VAC R Heat W Red wire White wire Thermostat connections R W 40 to 45 Wire across heater R W terminals ...

Page 26: ...recommend you use a two twisted pair cable 22 Ga minimum to the WDU from the control unit Category 5 wiring is preferred but not required In retrofit applications the existing 18 Ga thermostat wiring at least four wires is adequate and usually will work without problems However such nontwisted wiring can be subject to interference due to adjacent in wall high voltage wiring To wire the WDU to the ...

Page 27: ...AC system are made at the normal thermostat connections on the HVAC unit Refer to your HVAC system s documentation for specific information on its thermostat connections and set up requirements You will need to know the following HVAC system type Gas electric heat pump radiant or hydronic Fan requirement No fan with heat or fan with heat For heat pump system Changeover with cool or with heat O or ...

Page 28: ...er JP1 installed If you have separate heating and cooling system transformers cut jumper JP1 Wire RC to the cooling system transformer and RH to the heating system transformer Figure 18 Standard HVAC system wiring Note Wire R to either RH or RC for common transformer HVAC systems C 24 VAC common R 24 VAC return W1 Heat stage 1 W2 Heat stage 2 G Fan Y1 Comp stage 1 Y2 Comp stage 2 Thermostat connec...

Page 29: ...1 Wire the heating 24V Return red wire to the control unit s RH terminal and run the cooling system s 24V Return red wire to the control unit s RC terminal Wire the cooling system s 24 VAC Com to the control unit s 24 VAC Com terminal Do not connect the heating system s common wire to the control unit DIP switches To set the SW1 DIP switches for standard HVAC systems do the following 1 Set SW1 1 p...

Page 30: ...pump systems RC and RH are common for heat pumps Figure 19 Heat pump HVAC system wiring C 24 VAC common R 24 VAC return W1 Heat strips O Changeover valve G Fan Y1 Comp stage 1 Y2 Comp stage 2 Thermostat connections Heat pump HVAC system Thermostat control unit SW1 HP STD 1 S2 2 OFF ON J4 HVAC system JP1 FUSE 24C COM 24V RH 24V RC W1 Heat 1 W2 O CO G Fan Y1 Comp 1 Y2 Camp 2 Blue Red White Orange Gr...

Page 31: ...e right 2 Set SW1 2 position 2 to the correct changeover reversing valve setting for your HVAC system For systems with changeover with cooling set SW1 2 to Off position to the left This is the default setting For systems with changeover with heating set SW1 2 to On position to the right Note You must configure your changeover valve setting to work correctly with your HVAC system Set DIP switch SW1...

Page 32: ...rmer systems Most HVAC systems have a common heating and cooling transformer Connector JP1 is jumpered to common the RH and RC inputs together for this configuration If you have a system with separate heating and cooling transformers you will need to split the RH and RC jumper by cutting the JP1 jumper When wiring split systems wire the heating system s 24VAC R red wire to the control unit s RH te...

Page 33: ...ork address setting of the thermostat by pressing Menu to open the main Menu screen Scroll down to the Thermostat info menu item and press Select The Thermostat information screen on page 16 will show the current network address of the thermostat The default network address is 1 Changing the network address The network address is set from the Installer settings screen on page 17 on the WDU This is...

Page 34: ...commands Serial commands received by the control unit can set a new setpoint or a new mode and when received they are sent to the WDU to update its display The thermostat also responds to request for status by serial commands and can provide all thermostat data and setup information as well as the current revisions of the WDU and controller firmware The following thermostat information can be sent...

Page 35: ...mmunications failure display on the WDU and must be fixed before proceeding 6 Press the Fan button on the WDU until Fan On is displayed The control unit s fan LED and relay should turn on Press the Fan button again and the fan LED and relay should turn off 7 Press the Mode button on the WDU until Heat Mode is displayed 8 Press the setpoint Up button until the setpoint is above the current temperat...

Page 36: ...port you will be using on the PC 2 Configure port settings to 9600 baud 8 bit no parity 1 stop bit and no flow control 3 Under the Settings tab go ASCII setup 4 Set ASCII sending to Echo characters and No delays 5 Set ASCII receiving to Append line feeds and Wrap lines Note Serial ASCII commands are case sensitive Verify serial communication by typing the following command sequence A 1 R 1 cr The ...

Page 37: ... system operation by duplicating the thermostat switch operation by shorting across the thermostat terminals on the HVAC system Figure 20 HVAC system wiring example Note The HVAC system and thermostat connection voltage is 24 VAC This is a safe voltage to work with but be careful to avoid shorting the 24 VAC common C and 24 VAC return R terminals This may blow a fuse in the HVAC system Typical the...

Page 38: ... have changeover with cooling and require the O terminal to be powered to get cooling operation Use a short 6 inch wire to connect across the terminals as shown in Table 2 Note If you have the CO selection incorrect you will get cooling when you expect heating and vice versa Change the DIP switch SW1 2 changeover setting to correct this problem Table 1 Standard system quick test Function test HVAC...

Page 39: ...own transformer In that case cut jumper JP1 and wire the heating transformer red wire to the RH terminal and the cooling system transformer red wire to the RC terminal Wire the cooling system s 24 VAC Com to the control unit s 24 VAC Com terminal Do not connect the heating system s common wire to the control unit Wall display unit J1 WDU J2 RS 485 GND 12VDC Clock Data GND 12V C D GND D D Status He...

Page 40: ... the switch S1 setting If S1 is set to Standard HVAC system type then S2 selects the HVAC fan type Set S2 to Off for gas systems that normally do not require fan w heat operation default setting Set S2 to On for electric systems that normally do require fan w heat operation If S1 is set to Heat pump operation then S2 selects the changeover valve operation Set S2 to Off for changeover with cooling ...

Page 41: ... hold mode SEd x Set schedule entry for day and entry SP Set setpoint for single setpoint system SPC Set cool setpoint SPH Set heat setpoint SVx Set variable number x Time Set time R 1 Request status message 1 Thermostat data temperature setpoints modes R 2 Request status message 2 HVAC operation data heating cooling fan status R 3 Request status message 3 Temperature data only R 4 Request status ...

Page 42: ...eover type 0 1 0 0 c o w cool 1 c o w heat 4 C F type 0 1 0 0 Centigrade 1 Fahrenheit 5 Network address 1 to 254 1 Reserved 0 host 255 global 9 Display lock 0 1 0 0 unlocked 1 locked 10 MOT 5 to 9 minutes 6 minutes 0 20 second test time 11 MRT 0 to 9 minutes 6 minutes 0 20 second test time 12 H delta stage 1 on 0 to 8 degrees 1 degree 14 H delta stage 2 on 0 to 8 degrees 3 degrees 16 H delta stage...

Page 43: ...ite To access our publication library go to our website at the following location http www gesecurity com In the Tools area at the top click the Publication Library link After you register and log on you may search through our online library for the documentation you need 1 Table 5 Sales and support contact information Sales Technical support Phone Toll free 888 GESECURity 888 437 3287 in the US i...

Page 44: ...SmartCommand Thermostat Installation Manual 40 ...

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